<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--卡片视图区域-->
    <el-card>
      <!--2、为echarts准备一个具备大小的DOM-->
      <div id="main" style="width: 650px;height: 400px"></div>
    </el-card>
  </div>
</template>

<script>
//  1、导入echarts
import echarts from 'echarts'

//  导入
import _ from 'lodash'

export default {
  name: 'Report',
  data () {
    return {
      //  需要合并的数据
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created () {},
  async mounted () {
    //  3、初始化echarts实例
    var myeChart = echarts.init(document.getElementById('main'))
    //  获取数据报表
    const { data: res } = await this.$http.get('reports/type/1')
    if (res.meta.status !== 200) {
      //  请求失败
      return this.$message.error('获取数据报表失败！！')
    } else {
      //  请求成功
      this.$message.success('获取数据报表成功！')
    }
    //  4、准备数据和配置项(将res.data, this.options合并，通过lodash)
    const result = _.merge(res.data, this.options)
    //  5、展示数据
    myeChart.setOption(result)
  },
  methods: {}
}
</script>

<style lang="less" scoped>

</style>
